The people's common sense medical adviser in plain English, or, Medicine simplified . t strength. These fibers are parallel, seldom interlacing, but presenting a striped or striated appearance; and a microscopic examination of them shows that the most minute consist of parallel filaments ^^- ^^^ marked by longitudinal and transverse strue (minute channels). The fibers are of nearly the same length as the mus-cles to which they be- ^ long. Each muscular fiber is capable of con- w traction; it may act ?* singly, though usually striped muscular fibers, showing cleavage In it acts in unison with ^
The people's common sense medical adviser in plain English, or, Medicine simplified . t strength. These fibers are parallel, seldom interlacing, but presenting a striped or striated appearance; and a microscopic examination of them shows that the most minute consist of parallel filaments ^^- ^^^ marked by longitudinal and transverse strue (minute channels). The fibers are of nearly the same length as the mus-cles to which they be- ^ long. Each muscular fiber is capable of con- w traction; it may act ?* singly, though usually striped muscular fibers, showing cleavage In it acts in unison with ^J^^ Hrections. /. Longitudinal cleavage f. Transverse cleavage. 3. Transverse section of disc,others. By a close in- a. Disc nearly detached. .;. Detached disc showingSDection it has been *^6 saicous elements. «. Kibrillai. 7,8. Separated flbrillse (highly magnified). found that fibers may be drawn apart longitudinally, in which case they are termedfffniiftt, or they may be separated transversely, forming a seriesof discs. The Sifn-itlenutui, or investing sheath of the muscles,. 34 COSrMON SENSE MEDICAL ADVISEK. appears to have been foimed even before there were any visibletraces of the muscle itself. It is a transparent and delicatemembrane, bnt very elastic. The Involuntary Muscles are in-fluenced by the sympathetic system, and their action pertains tothe nutritive functions of the body. They differ from the volun-tary muscles, by being non-striated, havingno tendons, and by the net-work arrange-ment of their fibers. The IntermediateMuscles are composed of striated and non-striated fibers; they are therefore bothvoluntary and involuntary in their func-tions. The muscles emyjloyed in respira-tion are of this class, for we can breatherapidly or slowly, and, for a short time,even suspend their action; bixt soon, how-ever, the organic muscles assert their in-stinctive control, and respiration is The Diaphragiii (midriff) isthe muscular division between the thoraxand
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Keywords: ., bookcentury180, bookdecade1870, booksubjectmedicine, bookyear1876
